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Magallanesium pilatum
Magallanesium pilatum (Stanley, 1965, p.222, pl.21, figs.12-16) Quattrocchio and Sarjeant, 2003, p.140.
Originally Wetzeliella, subsequently Wetzeliella?, thirdly Spinidinium?, fourthly (and now) Magallanesium.
Holotype: Stanley, 1965, pl.21, figs.14-16.
Age: Paleocene
Original description: Stanley, 1965, p.222: Wetzeliella pilata
Outer cyst more or less pyriform to rhomboidal in dorso-ventral view; length 42-49 µ width about 30 µ. Hypotheca smaller than epitheca. Outer cyst membrane thin, moderately folded; membrane ornamented with rodlike elements that usually have a small ball-like expansion on the distal end (pila); length of spines 1.5 to 3 µ. Apical horn about 5 µ long. Left antapical horn approximately 9 µ long whereas the right antapical horn is usually not developed. Girdle on the order of 5 µ wide and more or less distinct; furrow and archeopyle indistinct.
Affinities:
Stanley, 1965, p.222: Wetzeliella pilata
Wetzeliella pilata, differs from W. rugosa, by having long sculpture elements that are expanded at their distal end.
Originally Wetzeliella, subsequently Wetzeliella?, thirdly Spinidinium?, fourthly (and now) Magallanesium.
Holotype: Stanley, 1965, pl.21, figs.14-16.
Age: Paleocene
Original description: Stanley, 1965, p.222: Wetzeliella pilata
Outer cyst more or less pyriform to rhomboidal in dorso-ventral view; length 42-49 µ width about 30 µ. Hypotheca smaller than epitheca. Outer cyst membrane thin, moderately folded; membrane ornamented with rodlike elements that usually have a small ball-like expansion on the distal end (pila); length of spines 1.5 to 3 µ. Apical horn about 5 µ long. Left antapical horn approximately 9 µ long whereas the right antapical horn is usually not developed. Girdle on the order of 5 µ wide and more or less distinct; furrow and archeopyle indistinct.
Affinities:
Stanley, 1965, p.222: Wetzeliella pilata
Wetzeliella pilata, differs from W. rugosa, by having long sculpture elements that are expanded at their distal end.